TOSS must not allow accounts configured with blank or null passwords.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| high | V-252966 | SRG-OS-000480-GPOS-00227 | TOSS-04-020270 | SV-252966r991589_rule | 2024-05-30 | 2 |
| Description |
|---|
| If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with empty passwords should never be used in operational environments. |
| ℹ️ Check |
|---|
| To verify that null passwords cannot be used, run the following command: $ sudo grep -i permitemptypasswords /etc/ssh/sshd_config PermitEmptyPasswords no If "PermitEmptyPasswords" is set to "yes", this is a finding. |
| ✔️ Fix |
|---|
| Edit the following line in "etc/ssh/sshd_config" to prevent logons with empty passwords. PermitEmptyPasswords no The SSH daemon must be restarted for the changes to take effect. To restart the SSH daemon, run the following command: $ sudo systemctl restart sshd.service |